<template>
  <div class="app">
    <h3>我是App组件（祖）</h3>
    <Child />

  </div>

</template>
<script>
  import Child from "@/components/Child.vue";
  export default {
    name: 'App',
    components:{Child},




  }
</script>
<style>
.app{
  background-color: gray;
  padding: 10px;
}
</style>


